+ url="http://wiki.postgresql.org/wiki/20110408pg_upgrade_fix">
+ http://wiki.postgresql.org/wiki/20110408pg_upgrade_fix.
+
+
+
+
+
+
Changes
+
+
+
+
+ Fix
pg_upgrade>'s handling of TOAST tables
+ (Bruce Momjian)
+
+
+ The pg_class>.relfrozenxid> value for
+ TOAST tables was not correctly copied into the new installation
+ during
pg_upgrade>. This could later result in
+ pg_clog> files being discarded while they were still
+ needed to validate tuples in the TOAST tables, leading to
+ could not access status of transaction> failures.
+
+
+ This error poses a significant risk of data loss for installations
+ that have been upgraded with
pg_upgrade>. This patch
+ corrects the problem for future uses of
pg_upgrade>,
+ but does not in itself cure the issue in installations that have been
+ processed with a buggy version of
pg_upgrade>.
+
+
+
+
+ Suppress incorrect PD_ALL_VISIBLE flag was incorrectly set>
+ warning (Heikki Linnakangas)
+
+
+ VACUUM> would sometimes issue this warning in cases that
+ are actually valid.
+
+
+
+
+ Use better SQLSTATE error codes for hot standby conflict cases
+ (Tatsuo Ishii and Simon Riggs)
+
+
+ All retryable conflict errors now have an error code that indicates
+ that a retry is possible. Also, session closure due to the database
+ being dropped on the master is now reported as
+ ERRCODE_DATABASE_DROPPED>, rather than
+ ERRCODE_ADMIN_SHUTDOWN>, so that connection poolers can
+ handle the situation correctly.
+
+
+
+
+ Prevent intermittent hang in interactions of startup process with
+ bgwriter process (Simon Riggs)
+
+
+ This affected recovery in non-hot-standby cases.
+
+
+
+
+ Disallow including a composite type in itself (Tom Lane)
+
+
+ This prevents scenarios wherein the server could recurse infinitely
+ while processing the composite type. While there are some possible
+ uses for such a structure, they don't seem compelling enough to
+ justify the effort required to make sure it always works safely.
+
+
+
+
+ Avoid potential deadlock during catalog cache initialization
+ (Nikhil Sontakke)
+
+
+ In some cases the cache loading code would acquire share lock on a
+ system index before locking the index's catalog. This could deadlock
+ against processes trying to acquire exclusive locks in the other,
+ more standard order.
+
+
+
+
+ Fix dangling-pointer problem in BEFORE ROW UPDATE> trigger
+ handling when there was a concurrent update to the target tuple
+ (Tom Lane)
+
+
+ This bug has been observed to result in intermittent cannot
+ extract system attribute from virtual tuple> failures while trying to
+ do UPDATE RETURNING ctid>. There is a very small probability
+ of more serious errors, such as generating incorrect index entries for
+ the updated tuple.
+
+
+
+
+ Disallow DROP TABLE> when there are pending deferred trigger
+ events for the table (Tom Lane)
+
+
+ Formerly the DROP> would go through, leading to
+ could not open relation with OID nnn> errors when the
+ triggers were eventually fired.
+
+
+
+
+ Allow replication> as a user name in
+ pg_hba.conf> (Andrew Dunstan)
+
+
+ replication> is special in the database name column, but it
+ was mistakenly also treated as special in the user name column.
+
+
+
+
+ Prevent crash triggered by constant-false WHERE conditions during
+ GEQO optimization (Tom Lane)
+
+
+
+
+
+
+ Improve planner's handling of semi-join and anti-join cases
+ (Tom Lane)
+
+
+
+
+ Fix handling of SELECT FOR UPDATE> in a sub-SELECT
+ (Tom Lane)
+
+
+ This bug typically led to cannot extract system attribute from
+ virtual tuple> errors.
+
+
+
+
+ Fix selectivity estimation for text search to account for NULLs
+ (Jesper Krogh)
+
+
+
+
+ Fix get_actual_variable_range() to support hypothetical indexes
+ injected by an index adviser plugin (Gurjeet Singh)
+
+
+
+
+ Fix PL/Python memory leak involving array slices (Daniel Popowich)
+
+
+
+
+ Allow
libpq>'s SSL initialization to succeed when
+ user's home directory is unavailable (Tom Lane)
+
+
+ If the SSL mode is such that a root certificate file is not required,
+ there is no need to fail. This change restores the behavior to what
+ it was in pre-9.0 releases.
+
+
+
+
+ Fix
libpq> to return a useful error message for errors
+ detected in conninfo_array_parse> (Joseph Adams)
+
+
+ A typo caused the library to return NULL, rather than the
+ PGconn> structure containing the error message, to the
+ application.
+
+
+
+
+ Fix
ecpg> preprocessor's handling of float constants
+ (Heikki Linnakangas)
+
+
+
+
+ Fix parallel
pg_restore> to handle comments on
+ POST_DATA items correctly (Arnd Hannemann)
+
+
+
+
+ Fix
pg_restore> to cope with long lines (over 1KB) in
+ TOC files (Tom Lane)
+
+
+
+
+ Put in more safeguards against crashing due to division-by-zero
+ with overly enthusiastic compiler optimization (Aurelien Jarno)
+
+
+
+
+ Support use of dlopen() in FreeBSD and OpenBSD on MIPS (Tom Lane)
+
+
+ There was a hard-wired assumption that this system function was not
+ available on MIPS hardware on these systems. Use a compile-time test
+ instead, since more recent versions have it.
+
+
+
+
+ Fix compilation failures on HP-UX (Heikki Linnakangas)
+
+
+
+
+ Avoid crash when trying to write to the Windows console very early
+ in process startup (Rushabh Lathia)
+
+
+
+
+ Support building with MinGW 64 bit compiler for Windows
+ (Andrew Dunstan)
+
+
+
+
+ Fix version-incompatibility problem with
libintl> on
+ Windows (Hiroshi Inoue)
+
+
+
+
+ Fix usage of
xcopy> in Windows build scripts to
+ work correctly under Windows 7 (Andrew Dunstan)
+
+
+ This affects the build scripts only, not installation or usage.
+
+
+
+
+ Fix path separator used by
pg_regress> on Cygwin
+ (Andrew Dunstan)
+
+
+
+
+ Update time zone data files to
tzdata> release 2011f
+ for DST law changes in Chile, Cuba, Falkland Islands, Morocco, Samoa,
+ and Turkey; also historical corrections for South Australia, Alaska,
+ and Hawaii.
+
+
+
+
+
+
+
+
Release 9.0.3
-
Release date
+
Release Date
2011-01-31
Release 9.0.2
-
Release date
+
Release Date
2010-12-16
Release 9.0.1
-
Release date
+
Release Date
2010-10-04
Release 9.0
-
Release date
+
Release Date
2010-09-20
- Add data and documentation installation location control to
- linkend="xfunc-c-pgxs">
PGXS> Makefiles
- (Mark Cave-Ayland)
+ Add data and documentation installation location control to
+
PGXS> Makefiles (Mark Cave-Ayland)